I was trying to upgrade my windows 8 pro 64-bit (ZH-TW) to Windows 8.1 Pro 64-bit (ZH-TW) and my pc would not get the option to keep apps and settings. I tried it on other computers that were installed with the exact same image for windows 8 and I have also tried changing the language and it still doesn't work. I have searched around online but I could not find any solution. I did not move my users folder, like some posts relating to this suggested.
UPDATE: I found out that "Korean" was set as my system language but i have already set english as default. It still shows korean as default now.